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# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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from pathlib import Path

import click
import yaml

from nat.data_models.config import Config


def validate_config(config_file: Path) -> Config:
    """Validate configuration file and return parsed config"""
    try:
        from nat.runtime.loader import load_config

        # Load using the NAT loader functions. This performs validation
        config = load_config(config_file)

        return config

    except yaml.YAMLError as e:
        raise click.ClickException(f"Invalid YAML format: {str(e)}")
    except Exception as e:
        raise click.ClickException(f"Validation error: {str(e)}")
